Oh and also, don't forget, If you are using any kind of survey software. The indoor antennes like the narrow patch have a hidden extra gain that you will need to take into account. I fell over this (per antenna element gain) on the datasheet and that cost me 2 dB's of power I could not send due to regulatory restrictions. The narrow patch has a gain of 10.8 dBi on the 5 GHz band (per antenna element), since you have an MR46E you need to add another 6 dB gain to that, so your actual gain would be 16.8 dBi in that case. So if like in my case if you were to use channel 36 through 64 I would living in the EU, I would be limited to 23 dBm EIRP which means my transmit power is no higher than 6dBm!! So in that case I had to go to channels 100-140 to have 30 dBm EIRP which made the Tx power maximally be 13.2 dBm.
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